Question

(x-2y)(2x-y)+(x+y)(x-y)=simlpy the following using identify​

Answer 1

Answer:

${3x}^{2} + {y}^{2} - 5xy$

Step-by-step explanation:

$(x - 2y)(2x - y) + (x + y)(x - y) \\ x(2x - y) - 2y(2x - y) + {x}^{2} - {y}^{2} \\ {2x}^{2} - xy - 4xy + {2y}^{2} + {x}^{2} - {y}^{2} \\ {3x}^{2} + {y}^{2} - 5xy$